Thermoelectric Properties of Co1-xNbxSb3 Prepared by Induction Melting


Article Preview

Induction melting was attempted to prepare the undoped and Nb-doped CoSb3 compounds, and their thermoelectric properties were investigated. Single phase d-CoSb3 was successfully obtained by induction melting and subsequent annealing at 400°C for 2 hours in vacuum. The positive signs of Seebeck coefficients for all the specimens revealed that Nb atoms acted as p-type dopants by substituting Co atoms. Electrical conductivity decreased and then increased withincreasing temperature, indicating mixed behaviors of metallic and semiconducting conductions. Electrical conductivity increased by Nb doping, and it was saturated at high temperature. Maximum value of the thermoelectric power factor was shifted to higher temperature with the increasing amount of Nb doping, mainly originated from the Seebeck coefficient variation.



Materials Science Forum (Volumes 486-487)

Edited by:

Hyung Sun Kim, Sang-Yeop Park, Bo Young Hur and Soo Wohn Lee




J.B. Park et al., "Thermoelectric Properties of Co1-xNbxSb3 Prepared by Induction Melting", Materials Science Forum, Vols. 486-487, pp. 602-605, 2005

Online since:

June 2005




[1] J.W. Sharp, E.C. Jones, R.K. Williams, P.M. Martin and B.C. Sales, J. Appl. Phys. 78, 2 (1995), p.1013.

[2] T. Caillat, A. Borshchevski and J. -P. Fleurial, Proc. 13th Intl. Conf. Thermoelectrics (1994), p.58.

[3] T. Caillat, A. Borshchevski and J. -P. Fleurial, J. Appl. Phys. 80, 8 (1996), p.4442.

[4] D.T. Morelli, T. Caillat, J. -P. Fleurial, A. Borshchevski, J. Vandersande, B. Chen and C. Uher, Phys. Rev. B51 (1995), p.9622.

[5] H. Anno, K. Matsubara, Y. Notohara, T. Sakakibara and H. Tashiro, J. Appl. Phys. 86, 7 (1999), p.3780.

[6] P. Feschotte and D. Lorin, J. Less-Common Metals 155 (1989), p.255.

[7] H. Tashiro, Y. Notohara, T. sakaibara, H. Anno and K. Matsubara, Proc. 16th Intl. Conf. Thermoelectrics (1997), p.326.

[8] Y. Nakamoto, K. Tanaka and T. Koyanagi, Proc. 17th Intl. Conf. Thermoelectrics (1998), p.302.

[9] I. -H. Kim, G. -S. Choi, M. -G. Han, J. -S. Kim, J. -I. Lee, S. -C. Ur, T. -W. - Hong, Y. -G. Lee and S. -L. Ryu, Mater. Sci. Forum 449 (2004), p.917.

[10] S. Katsuyama, M. Watanabe, M. Kuroki, T. Maehata and M. Ito, J. Appl. Phys. 93, 5 (2003), p.2758.

[11] K. Matsubara, T. Sakakibara, Y. Notohara, H. Anno, H. Shimuzu and T. Koyanagi, Proc. 15th Intl. Conf. Thermoelectrics (1996), p.96.

Fetching data from Crossref.
This may take some time to load.